*{
    margin: 0;
    padding: 0;
}
img{
    display: inline-flex;
}
body{
    margin:0 auto;
    text-align: center;
}
h1{
    padding-bottom: 20px;
    font-size: 50px;
    font-weight: 500;
}
.titel{
    padding: 100px 0;
    background-color: #e9ecef;
}
.main-btn{
    padding-top: 20px;
}
.main-btn button{
    border: 0;
    height: 38px;
    border-radius: 5px;
}
.btn1, .btn2, .btn4, .btn5{
    width: 138px;
}




.btn3{
    width: 250px;
    margin:3px 140px;
    background: #6c757d;
}
.action{
    background: #5aaaff;
}



.main-text{
    padding: 40px 0;
}
.btn6{
    width: 270px;
    height: 50px;
    border: 0;
    color: #fff;
    font-size: 22px;
    border-radius: 5px;
    background: #007bff;
}
.dingwei{
    position: absolute;
    left: 255px;
}
#two{
    background-color: #ccc;
}